Answer:
1)Watch out!
2) What song will the choir sing for homecoming?
Did you register to vote?
4) A tornado is coming!
Help, I'm slipping!
Explanation:
I think its a because its not a list
We've got an outdoor food court that sells all the typical winter warmers, tea and coffee, and continental foods.
Inside, there is a nice skating rink, a children's play area, and a raffle.
The structure of the given sentence above is a simple sentence. It is a simple sentence because it only contains an independent clause. A simple sentence is a structure of a sentence that contains a subject and a verb. The subject and the verb can either be single or compound.